The present invention relates generally to processes of making (R)-3-(2,3-Dihydroxypropyl)-6-fluoro-5-(2-fluoro-4-iodophenylamino)-8-methylpyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione, intermediates thereof, and a process for making a particular polymorph of (R)-3-(2,3-Dihydroxypropyl)-6-fluoro-5-(2-fluoro-4-iodophenylamino)-8-methylpyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione.
本发明涉及制备(R)-3-(2,3-二羟丙基)-6-
氟-5-(
2-氟-4-碘苯胺基)-8-甲基
吡咯[2,3-d]
嘧啶-4,7(3H,8H)-二酮及其中间体的方法,以及制备(R)-3-(2,3-二羟丙基)-6-
氟-5-(
2-氟-4-碘苯胺基)-8-甲基
吡咯[2,3-d]
嘧啶-4,7(3H,8H)-二酮的特定多晶形式的方法。